Ion solenoid circuit board



FIG. 1 is a perspective view of an ion solenoid circuit board;

FIG. 2 is a top plan view of an ion solenoid circuit board;

FIG. 3 is a left side elevation view of an ion solenoid circuit board;

FIG. 4 is a front elevation view of an ion solenoid circuit board;

FIG. 5 is a right side elevation view of an ion solenoid circuit board; and,

FIG. 6 is a bottom plan view of an ion solenoid circuit board.

The broken line showing of the environment is for illustrative purpose only and forms no part of the claimed design. 

The ornamental design for an ion solenoid circuit board, as shown and described. 